Question

Rezolvatsi va rog .!.

Answer 1

1. a=-3-2=-5
   $b= \frac{14}{3}: \frac{7}{6}= \frac{14}{3}* \frac{6}{7}=4$
   a*b=(-5)*4=-20

2. Folosind teorema ungiului de 30 de grade obtinem ca:
    $AB= \frac{BC}{2} = \frac{8}{2}= 4 cm$

Answer 2

a= -3-2 = -5
b= 14/3:7/6 = 14/3x6/7 = 4
axb = -5x4 = -20

Conform T∡30°=>AB=BC/2=4cm